Sujet : Cull Canyon Deep Mud
De : jeffl (at) *nospam* cruzio.com (Jeff Liebermann)
Groupes : rec.bicycles.techDate : 10. Sep 2024, 19:56:59
Autres entêtes
Message-ID : <8l01ejlb95dousjtf1tu80vur2opvbco6b@4ax.com>
User-Agent : ForteAgent/8.00.32.1272
This is for Tom.
(Sept 2013)
"Cull Canyon Reservoir / Dam"
<
https://www.youtube.com/watch?v=OvZDs5JUr1M>
Compliments of the Castro Valley Sanitary District.
<
https://www.facebook.com/CVSan>
Looks like the reservoir has been a problem for at least 11 years. The
video explains why fixing the deep mud problem is difficult. More
recent photos show a functional lake. This page explains the
sedimentation problem:
<
https://en.wikipedia.org/wiki/Cull_Canyon_Regional_Recreation_Area#Reservoir_sedimentation_issue>
I really like this proposed (political) solution:
"Alameda County engineers have proposed to notch the reservoir's weir.
This would let water flow downstream, leaving the accumulated sediment
behind. Ackerman said that cost would be less than $1 million, and
that the seismic threat would be eliminated because the (California)
Division of Safety of Dams would no longer consider it a dam if it
didn't hold back water."
Hey Tom. On your next ride, could you check if the dam has a notch?
In any case, there's no indication that the deep mud will impact Tom's
bicycle rides or the use of the various trails:
<
https://www.ebparks.org/sites/default/files/cull_canyon_map.pdf>
Perhaps if you stop spinning your wheels there might be less silt.
-- Jeff Liebermann jeffl@cruzio.comPO Box 272 http://www.LearnByDestroying.comBen Lomond CA 95005-0272Skype: JeffLiebermann AE6KS 831-336-2558